Formsroleauth: как это реализовать если я использую Entity Framework 4.0

private void btnLogin_Click(Object sender, EventArgs e)
{
    // Initialize FormsAuthentication, for what it's worth
    FormsAuthentication.Initialize();
 
    // Create our connection and command objects
    SqlConnection conn =
     new SqlConnection("Data Source=localhost;Initial Catalog=web;");
    SqlCommand cmd = conn.CreateCommand();
    cmd.CommandText = "SELECT roles FROM web WHERE username=@username " +
     "AND password=@password";
 
    // Fill our parameters
    cmd.Parameters.Add("@username", SqlDbType.NVarChar, 64).Value =
Username.Value;
    cmd.Parameters.Add("@password", SqlDbType.NVarChar, 128).Value =
     FormsAuthentication.HashPasswordForStoringInConfigFile(
        Password.Value, "md5"); // Or "sha1"
 
    // Execute the command
    conn.Open();
    SqlDataReader reader = cmd.ExecuteReader();
    if (reader.Read())
    {
     // Create a new ticket used for authentication
     FormsAuthenticationTicket ticket = new FormsAuthenticationTicket(
        1, // Ticket version
        Username.Value, // Username associated with ticket
        DateTime.Now, // Date/time issued
        DateTime.Now.AddMinutes(30), // Date/time to expire
        true, // "true" for a persistent user cookie
        reader.GetString(0), // User-data, in this case the roles
        FormsAuthentication.FormsCookiePath);// Path cookie valid for
 
     // Encrypt the cookie using the machine key for secure transport
     string hash = FormsAuthentication.Encrypt(ticket);
     HttpCookie cookie = new HttpCookie(
        FormsAuthentication.FormsCookieName, // Name of auth cookie
        hash); // Hashed ticket
 
     // Set the cookie's expiration time to the tickets expiration time
     if (ticket.IsPersistent) cookie.Expires = ticket.Expiration;
 
     // Add the cookie to the list for outgoing response
     Response.Cookies.Add(cookie);
 
     // Redirect to requested URL, or homepage if no previous page
     // requested
     string returnUrl = Request.QueryString["ReturnUrl"];
     if (returnUrl == null) returnUrl = "/";
 
     // Don't call FormsAuthentication.RedirectFromLoginPage since it
     // could
     // replace the authentication ticket (cookie) we just added
     Response.Redirect(returnUrl);
    }
    else
    {
     // Never tell the user if just the username is password is incorrect.
     // That just gives them a place to start, once they've found one or
     // the other is correct!
     ErrorLabel = "Username / password incorrect. Please try again.";
     ErrorLabel.Visible = true;
    }
 
    reader.Close();
    conn.Close();
}

 
// Initialize FormsAuthentication, for what it's worth
    FormsAuthentication.Initialize();
// Create a new ticket used for authentication
     FormsAuthenticationTicket ticket = new FormsAuthenticationTicket(
        1, // Ticket version
        Username.Value, // Username associated with ticket
        DateTime.Now, // Date/time issued
        DateTime.Now.AddMinutes(30), // Date/time to expire
        true, // "true" for a persistent user cookie
        reader.GetString(0), // User-data, in this case the roles
        FormsAuthentication.FormsCookiePath);// Path cookie valid for
 
     // Encrypt the cookie using the machine key for secure transport
     string hash = FormsAuthentication.Encrypt(ticket);
     HttpCookie cookie = new HttpCookie(
        FormsAuthentication.FormsCookieName, // Name of auth cookie
        hash); // Hashed ticket
 
     // Set the cookie's expiration time to the tickets expiration time
     if (ticket.IsPersistent) cookie.Expires = ticket.Expiration;
 
     // Add the cookie to the list for outgoing response
     Response.Cookies.Add(cookie);
 
     // Redirect to requested URL, or homepage if no previous page
     // requested
     string returnUrl = Request.QueryString["ReturnUrl"];
     if (returnUrl == null) returnUrl = "/";
 
     // Don't call FormsAuthentication.RedirectFromLoginPage since it
     // could
     // replace the authentication ticket (cookie) we just added
     Response.Redirect(returnUrl);
    }
    else
    {
     // Never tell the user if just the username is password is incorrect.
     // That just gives them a place to start, once they've found one or
     // the other is correct!
     ErrorLabel = "Username / password incorrect. Please try again.";
     ErrorLabel.Visible = true;
    }
 
    reader.Close();
    conn.Close();
}
 

 
accountService.Login(tbxLoginUsername.Text, tbxLoginPassword.Text);
 

 
reader.GetString(0), // User-data, in this case the roles

accountService.AddRole(newAccount, pubRole);
                    accountService.AddRole(newAccount, regRole);

public Account CurrentUser
public string Username
public bool LoggedIn
 

 
protected void Page_Load(object sender, EventArgs e)
        {
            if (HttpContext.Current.User.Identity.IsAuthenticated)
            {
                   
                    if (HttpContext.Current.User.IsInRole("RegisteredUser"))
                    {
                        LoginOperation.ChangeDateOfLastEnter(HttpContext.Current.User.Identity.Name);
                        Response.Redirect("~/UserPages/MainPage.aspx");
 
                    }
                    if (HttpContext.Current.User.IsInRole("Moderator") ||
                        HttpContext.Current.User.IsInRole("Administrator"))
                    {
                        LoginOperation.ChangeDateOfLastEnter(HttpContext.Current.User.Identity.Name);
                        Response.Redirect("~/Default.aspx");
                    }
 
            }
           
        }
 protected void btnLogin_Click(object sender, EventArgs e)
        {
           
                    if (Request.Cookies[".ASPXAUTH"] != null)
                    {
                        Request.Cookies.Remove(".ASPXAUTH");
                    }
                    var userComponent = new LoginControlUserComponent();//это мой класс с помощью           //которого идет работа с базой данных 
                   
                        var users = userComponent.Validate(tbxLogin.Text, tbxPassword.Text);//проверяю логин //и пароль и получаю из базы пользователя
                        if (users != null)
                        {
                            var userData = LoginOperation.ParseRoleInUser(users);
                            Response.Cookies.Add(LoginOperation.CreateHttpCookie(userData.Item2, userData.Item1));//создаю cookie в который зашиваю логин как UserName и роли .                               
                            
              }
 
public static class LoginOperation
    {
      //вырываю роли и имя пользоватяля из объекта 
      public static Tuple<string,UserEntity> ParseRoleInUser(ICollection<UserEntity> users)
       {
           if (users != null)
           {
               var roles = "";
               UserEntity user = null;
               foreach (var userEntity in users)
               {
                   user = userEntity;
                   roles += userEntity.Role.Type.ToString();
                   roles += ";";
               }
               roles=roles.TrimEnd(';');
               return new Tuple<string, UserEntity>(roles,user);
           }
           return null;
       }
   //собственно функа создания кукиса
       public static HttpCookie CreateHttpCookie(UserEntity user,string name)
       {
           var ticket = new FormsAuthenticationTicket(1, user.Login, DateTime.Now, DateTime.Now.AddMinutes(30), true, name, FormsAuthentication.FormsCookiePath);
                var cookie = new HttpCookie(FormsAuthentication.FormsCookieName,
                                            FormsAuthentication.Encrypt(ticket));
                if (ticket.IsPersistent) cookie.Expires = ticket.Expiration;
           return cookie;
       }      
    }
 

 
protected void Application_AuthenticateRequest(object sender, EventArgs e)
        {
            if (HttpContext.Current.User!=null)
            {
                if(HttpContext.Current.User.Identity is FormsIdentity)
                {
                    var identity = HttpContext.Current.User.Identity as FormsIdentity;
                    if (identity != null)
                    {
                        var ticket = identity.Ticket;
                        var roles = ticket.UserData.Split(';');
                        HttpContext.Current.User=new GenericPrincipal(identity,roles);
 
                    }
 
                }
            }
 
        }